Knife



FIG. 1 is a perspective view of a knife showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a right side elevational view thereof with a blade of the knife in a retracted position.

The broken lines shown in the drawings illustrate environmental structure and form no part of the claimed design. 

The ornamental design for a knife, as shown and described. 